usb: typec: ucsi: fix UCSI on buggy Qualcomm devices

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On sevral Qualcomm platforms (SC8180X, SM8350, SC8280XP) a call to
UCSI_GET_PDOS for non-PD partners will cause a firmware crash with no
easy way to recover from it. Since we have no easy way to determine
whether the partner really has PD support, shortcut UCSI_GET_PDOS on
such platforms. This allows us to enable UCSI support on such devices.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20231025115620.905538-2-dmitry.baryshkov@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

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Dmitry Baryshkov 2023-10-25 14:49:29 +03:00 • committed by Bjorn Andersson

parent 6da02af3f9

commit 1d103d6af2

3 changed files with 19 additions and 0 deletions

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3

drivers/usb/typec/ucsi/ucsi.c

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3

drivers/usb/typec/ucsi/ucsi.h

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13

drivers/usb/typec/ucsi/ucsi_glink.c

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